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NOAA Extended Reconstructed Sea Surface Temperature (SST) V3b

Brief Description:

  • A global monthly SST analysis from 1854 to the present derived from ICOADS data with missing data filled in by statistical methods. More Details...

Temporal Coverage:

  • Monthly values for 1854/01 - 2020/02.
  • Long term monthly means, derived from data for years 1971 - 2000.
  • Long term monthly means, derived from data for years 1981 - 2010.

Spatial Coverage:

  • 2.0 degree latitude x 2.0 degree longitude global grid (89x180).
  • 88.0N - 88.0S, 0.0E - 358.0E.


  • Sea Surface

Update Schedule:

  • Monthly

Download/Plot Data: (FTP Access)

Variable Statistic Level Units Download File Create Plot/Subset
Sea Surface Temperature Monthly Mean Surface degC sst.mnmean.v3.nc plot
Sea Surface Temperature Monthly Long Term Mean Surface degC sst.mon.19812010.ltm.v3.nc plot
Sea Surface Temperature Monthly Long Term Mean Surface degC sst.mon.19712000.ltm.v3.nc plot

Usage Restrictions:

  • None

Detailed Description:


  • None

Related File Naming & Structure Information:

File Names:

  • err | sst.stat[.time].v3.nc   (In directory: /Datasets/noaa.ersst/)

OpenDap File Names:

  • /thredds/dodsC/Datasets/noaa.ersst/ | sst.stat[.time].v3.nc   

    Dataset Format and Size:
    • PSL standard NetCDF ~60 Mbyte file for each monthly file.
    • PSL standard NetCDF 388 Kbyte file for each long term mean file..

    Missing Data:

    • Data have been interpolated in time and space by the providers. Land points are flagged with a value of -9.96921e+36.


    • Please note: If you acquire NOAA_ERSST_V3b data products from PSL, we ask that you acknowledge us in your use of the data. This may be done by including text such as NOAA_ERSST_V3b data provided by the NOAA/OAR/ESRL PSL, Boulder, Colorado, USA, from their Web site at / in any documents or publications using these data. We would also appreciate receiving a copy of the relevant publications. This will help PSL to justify keeping the NOAA_ERSST_V3b data set freely available online in the future. Thank you!


    • Smith, T.M., R.W. Reynolds, T.C. Peterson, and J. Lawrimore, 2008: Improvements NOAAs Historical Merged Land–Ocean Temp Analysis (1880–2006). Journal of Climate, 21, 2283–2296.
    • Xue, Y., T.M. Smith, and R.W. Reynolds, 2003: Interdecadal Changes of 30-Yr SST Normals during 1871–2000. Journal of Climate, 16, 1601–1612.

    Original Source:


    • Physical Sciences Laboratory: Data Management
      325 Broadway
      Boulder, CO 80305-3328